SCHUNK氣缸SRU50.2-180-3-VM-8翊霈代理供應
發布日期:2023-12-20
簡要描述:
編碼器(encoder)是將信號(如比特流)或數據進行編制、轉換為可用以通訊、傳輸和存儲的信號形式的設備。編碼器把角位移或直線位移轉換成電信號,前者稱為碼盤,后者稱為碼尺。按照讀出方式編碼器可以分為接觸式和非接觸式兩種;
由一個中心有軸的光電碼盤,其上有環形通、暗的刻線,有光電發射和接收器件讀取,獲得四組正弦波信號組合成A、B、C、D,每個正弦波相差90度相位差(相對于一個周波為360度),將C、D信號反向,疊加在A、B兩相上,可增強穩定信號;另每轉輸出一個Z相脈沖以代表零位參考位。
由(you)于A、B兩(liang)相(xiang)相(xiang)差90度(du),可(ke)通過比較A相(xiang)在前還是B相(xiang)在前,以判別編(bian)碼(ma)器(qi)的(de)正轉與反轉,通過零位脈(mo)沖,可(ke)獲(huo)得(de)編(bian)碼(ma)器(qi)的(de)零位參考位。編(bian)碼(ma)器(qi)碼(ma)盤(pan)的(de)材料(liao)有(you)(you)玻璃、金屬(shu)、塑(su)料(liao),玻璃碼(ma)盤(pan)是在玻璃上沉積很薄的(de)刻(ke)線,其熱穩定(ding)(ding)性好,精度(du)高,金屬(shu)碼(ma)盤(pan)直(zhi)接以通和不通刻(ke)線,不易碎,但(dan)由(you)于金屬(shu)有(you)(you)一定(ding)(ding)的(de)厚度(du),精度(du)就有(you)(you)限(xian)制,其熱穩定(ding)(ding)性就要(yao)比玻璃的(de)差一個數量級,塑(su)料(liao)碼(ma)盤(pan)是經(jing)濟型的(de),其成本低,但(dan)精度(du)、熱穩定(ding)(ding)性、壽(shou)命均要(yao)差一些。
絕(jue)緣(yuan)耐電(dian)(dian)壓(ya)(ya)測(ce)(ce)試(shi)儀(yi)又叫電(dian)(dian)氣絕(jue)緣(yuan)強(qiang)度(du)試(shi)驗(yan)儀(yi)或叫介質強(qiang)度(du)測(ce)(ce)試(shi)儀(yi)。將一規定(ding)(ding)(ding)交流或直流高(gao)壓(ya)(ya)施加在電(dian)(dian)器帶(dai)電(dian)(dian)部(bu)(bu)分和(he)非帶(dai)電(dian)(dian)部(bu)(bu)分(一般為外殼)之間以檢查(cha)電(dian)(dian)器的(de)(de)絕(jue)緣(yuan)材(cai)料(liao)(liao)(liao)所(suo)能(neng)承受(shou)耐壓(ya)(ya)能(neng)力(li)的(de)(de)試(shi)驗(yan)。電(dian)(dian)器在長期工作(zuo)(zuo)中(zhong),不(bu)僅要承受(shou)規定(ding)(ding)(ding)的(de)(de)工作(zuo)(zuo)電(dian)(dian)壓(ya)(ya)的(de)(de)作(zuo)(zuo)用,還(huan)要承受(shou)操(cao)作(zuo)(zuo)過(guo)程中(zhong)引起短時(shi)間的(de)(de)高(gao)于額定(ding)(ding)(ding)工作(zuo)(zuo)電(dian)(dian)壓(ya)(ya)的(de)(de)過(guo)電(dian)(dian)壓(ya)(ya)(過(guo)電(dian)(dian)壓(ya)(ya)值可(ke)能(neng)會(hui)高(gao)于額定(ding)(ding)(ding)工作(zuo)(zuo)電(dian)(dian)壓(ya)(ya)值的(de)(de)好幾(ji)倍)。在這些電(dian)(dian)壓(ya)(ya)的(de)(de)作(zuo)(zuo)用下,電(dian)(dian)氣絕(jue)緣(yuan)材(cai)料(liao)(liao)(liao)的(de)(de)內部(bu)(bu)結構將發生變化。當過(guo)電(dian)(dian)壓(ya)(ya)強(qiang)度(du)達到某一定(ding)(ding)(ding)值時(shi),就會(hui)使(shi)材(cai)料(liao)(liao)(liao)的(de)(de)絕(jue)緣(yuan)擊穿,電(dian)(dian)器將不(bu)能(neng)正常運(yun)行,操(cao)作(zuo)(zuo)者就可(ke)能(neng)觸電(dian)(dian),危及(ji)人身安全。
過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)(filter)是(shi)輸送(song)(song)介(jie)質(zhi)(zhi)管(guan)道(dao)上(shang)(shang)*的(de)(de)(de)(de)(de)一種(zhong)裝置(zhi),通(tong)(tong)常安裝在(zai)減(jian)壓(ya)(ya)(ya)(ya)閥(fa)、泄(xie)壓(ya)(ya)(ya)(ya)閥(fa)、定(ding)水(shui)(shui)(shui)位閥(fa) ,方(fang)工(gong)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)其(qi)(qi)它設(she)(she)(she)備的(de)(de)(de)(de)(de)進(jin)口(kou)(kou)端設(she)(she)(she)備。過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)由筒體(ti)、不(bu)(bu)銹(xiu)鋼濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang)、排(pai)污(wu)(wu)部(bu)分、傳(chuan)動(dong)(dong)裝置(zhi)及電氣控(kong)(kong)制部(bu)分組(zu)成。待(dai)處(chu)理(li)的(de)(de)(de)(de)(de)水(shui)(shui)(shui)經(jing)過(guo)(guo)(guo)(guo)(guo)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang)的(de)(de)(de)(de)(de)濾(lv)(lv)(lv)(lv)(lv)(lv)筒后(hou),其(qi)(qi)雜(za)質(zhi)(zhi)被(bei)(bei)阻擋,當需要清洗(xi)時(shi)(shi),只要將(jiang)(jiang)可拆(chai)卸的(de)(de)(de)(de)(de)濾(lv)(lv)(lv)(lv)(lv)(lv)筒取出(chu)(chu)(chu)(chu),處(chu)理(li)后(hou)重新裝入(ru)即可,因(yin)此,使(shi)用(yong)維護極(ji)為方(fang)便。過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)工(gong)作(zuo)時(shi)(shi),待(dai)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)的(de)(de)(de)(de)(de)水(shui)(shui)(shui)由水(shui)(shui)(shui)口(kou)(kou)進(jin)入(ru),流經(jing)濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang), 通(tong)(tong)過(guo)(guo)(guo)(guo)(guo)出(chu)(chu)(chu)(chu)口(kou)(kou)進(jin)入(ru)用(yong)戶所須(xu)的(de)(de)(de)(de)(de)管(guan)道(dao)進(jin)行工(gong)藝循(xun)環(huan)(huan),水(shui)(shui)(shui)中的(de)(de)(de)(de)(de)顆(ke)粒(li)雜(za)質(zhi)(zhi)被(bei)(bei)截留在(zai)濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang)內(nei)(nei)部(bu)。如(ru)此不(bu)(bu)斷(duan)的(de)(de)(de)(de)(de)循(xun)環(huan)(huan),被(bei)(bei)截留下(xia)來的(de)(de)(de)(de)(de)顆(ke)粒(li)越(yue)(yue)來越(yue)(yue)多,過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)速度越(yue)(yue)來越(yue)(yue)慢,而進(jin)口(kou)(kou)的(de)(de)(de)(de)(de)污(wu)(wu)水(shui)(shui)(shui)仍源源不(bu)(bu)斷(duan)地(di)進(jin)入(ru),濾(lv)(lv)(lv)(lv)(lv)(lv)孔(kong)(kong)會越(yue)(yue)來越(yue)(yue)小,由此在(zai)進(jin)、出(chu)(chu)(chu)(chu)口(kou)(kou)之間(jian)產生壓(ya)(ya)(ya)(ya)力(li)(li)差(cha),當大(da)度差(cha)達到(dao)設(she)(she)(she)定(ding)值時(shi)(shi),差(cha)壓(ya)(ya)(ya)(ya)變送(song)(song)器(qi)將(jiang)(jiang)電信號傳(chuan)送(song)(song)到(dao)控(kong)(kong)制器(qi),控(kong)(kong)制系統啟動(dong)(dong)驅動(dong)(dong)馬達通(tong)(tong)過(guo)(guo)(guo)(guo)(guo)傳(chuan)動(dong)(dong)組(zu)件帶動(dong)(dong)軸轉動(dong)(dong),同時(shi)(shi)排(pai)污(wu)(wu)口(kou)(kou)打開,由排(pai)污(wu)(wu)口(kou)(kou)排(pai)出(chu)(chu)(chu)(chu),當濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang)清洗(xi)完畢后(hou),壓(ya)(ya)(ya)(ya)差(cha)降到(dao)最(zui)小值,系統返回到(dao)初始過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)狀,系統正(zheng)(zheng)常運行。過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)由殼體(ti)、多元(yuan)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)、反(fan)(fan)沖洗(xi)機(ji)構(gou)、和差(cha)壓(ya)(ya)(ya)(ya)控(kong)(kong)制器(qi)等(deng)部(bu)分組(zu)成。殼體(ti)內(nei)(nei)的(de)(de)(de)(de)(de)橫隔(ge)板將(jiang)(jiang)其(qi)(qi)內(nei)(nei)腔分為上(shang)(shang)、下(xia)兩腔,上(shang)(shang)腔內(nei)(nei)配有(you)多個過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin),這(zhe)樣充分了(le)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)空(kong)間(jian),顯(xian)著(zhu)縮小了(le)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)的(de)(de)(de)(de)(de)體(ti)積(ji),下(xia)腔內(nei)(nei)安裝有(you)反(fan)(fan)沖 洗(xi)吸盤(pan)(pan)。工(gong)作(zuo)時(shi)(shi),濁液經(jing)入(ru)口(kou)(kou)進(jin)入(ru)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)下(xia)腔,又經(jing)隔(ge)板孔(kong)(kong)進(jin)入(ru)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)的(de)(de)(de)(de)(de)內(nei)(nei)腔。大(da)于(yu)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)縫隙的(de)(de)(de)(de)(de)雜(za)質(zhi)(zhi)被(bei)(bei)截留,凈液穿過(guo)(guo)(guo)(guo)(guo)縫隙到(dao)達上(shang)(shang)腔, 最(zui)后(hou)從(cong)出(chu)(chu)(chu)(chu)口(kou)(kou)送(song)(song)出(chu)(chu)(chu)(chu)。過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)采用(yong)高(gao)(gao)強(qiang)度的(de)(de)(de)(de)(de)楔形濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang),通(tong)(tong)過(guo)(guo)(guo)(guo)(guo)壓(ya)(ya)(ya)(ya)差(cha)控(kong)(kong)制、定(ding)時(shi)(shi)控(kong)(kong)制自(zi)(zi)動(dong)(dong)清洗(xi)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)。當過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)內(nei)(nei)雜(za)質(zhi)(zhi)積(ji)聚在(zai)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)表面引起進(jin)出(chu)(chu)(chu)(chu)口(kou)(kou)壓(ya)(ya)(ya)(ya)差(cha)增大(da)到(dao)設(she)(she)(she)定(ding)值,或定(ding)時(shi)(shi)器(qi)達到(dao)預置(zhi)時(shi)(shi)間(jian)時(shi)(shi),電動(dong)(dong)控(kong)(kong)制箱發出(chu)(chu)(chu)(chu)信號,驅動(dong)(dong)反(fan)(fan)沖洗(xi)機(ji)構(gou)。當反(fan)(fan)沖洗(xi)吸盤(pan)(pan)與濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)進(jin)口(kou)(kou)正(zheng)(zheng)對時(shi)(shi),排(pai)污(wu)(wu)閥(fa)打開,此時(shi)(shi)系統泄(xie)壓(ya)(ya)(ya)(ya)排(pai)水(shui)(shui)(shui),吸盤(pan)(pan)與濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)內(nei)(nei)側出(chu)(chu)(chu)(chu)現一個相(xiang)對壓(ya)(ya)(ya)(ya)力(li)(li)低于(yu)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)外(wai)側水(shui)(shui)(shui)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)負壓(ya)(ya)(ya)(ya)區,迫使(shi)部(bu)分凈循(xun)環(huan)(huan)水(shui)(shui)(shui)從(cong)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)外(wai)側流入(ru)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)內(nei)(nei)側,吸附在(zai)濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)內(nei)(nei)內(nei)(nei)壁上(shang)(shang)的(de)(de)(de)(de)(de)雜(za)質(zhi)(zhi)微粒(li)隨水(shui)(shui)(shui)流進(jin)穣盤(pan)(pan)內(nei)(nei)并(bing)從(cong)排(pai)污(wu)(wu)閥(fa)排(pai)出(chu)(chu)(chu)(chu)。特殊設(she)(she)(she)計(ji)的(de)(de)(de)(de)(de)濾(lv)(lv)(lv)(lv)(lv)(lv)網(wang)使(shi)得濾(lv)(lv)(lv)(lv)(lv)(lv)芯(xin)內(nei)(nei)部(bu)產生噴射效果,任何雜(za)質(zhi)(zhi)都將(jiang)(jiang)被(bei)(bei)從(cong)光(guang)滑的(de)(de)(de)(de)(de)內(nei)(nei)壁上(shang)(shang)沖走。當過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)進(jin)出(chu)(chu)(chu)(chu)口(kou)(kou)壓(ya)(ya)(ya)(ya)差(cha)恢復正(zheng)(zheng)常或定(ding)時(shi)(shi)器(qi)設(she)(she)(she)定(ding)時(shi)(shi)間(jian)結(jie)束,整(zheng)個過(guo)(guo)(guo)(guo)(guo)程中,物料(liao)不(bu)(bu)斷(duan)流,反(fan)(fan)洗(xi)耗水(shui)(shui)(shui)量少,實現了(le)連續化,自(zi)(zi)動(dong)(dong)化生產。過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)器(qi)廣泛用(yong)于(yu)冶金、化工(gong)、石油、造紙、醫(yi)藥、食(shi)品(pin)、采礦、電力(li)(li)、城(cheng)市(shi)給(gei)水(shui)(shui)(shui)領(ling)域。諸(zhu)如(ru)工(gong)業廢(fei)(fei)水(shui)(shui)(shui), 循(xun)環(huan)(huan)水(shui)(shui)(shui)的(de)(de)(de)(de)(de)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv),乳化液的(de)(de)(de)(de)(de)再生,廢(fei)(fei)油過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)處(chu)理(li),冶金行業的(de)(de)(de)(de)(de)連鑄水(shui)(shui)(shui)系統、高(gao)(gao)爐水(shui)(shui)(shui)系統,熱軋用(yong)高(gao)(gao)壓(ya)(ya)(ya)(ya)水(shui)(shui)(shui)除鱗系統。是(shi)一種(zhong)先進(jin)、高(gao)(gao)效且易操(cao)作(zuo)的(de)(de)(de)(de)(de)全(quan)自(zi)(zi)動(dong)(dong)過(guo)(guo)(guo)(guo)(guo)濾(lv)(lv)(lv)(lv)(lv)(lv)裝置(zhi)。
蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)是液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)氣(qi)(qi)動(dong)系(xi)(xi)統(tong)(tong)(tong)中(zhong)的(de)(de)(de)一種能(neng)(neng)(neng)(neng)(neng)量(liang)(liang)(liang)(liang)儲(chu)蓄(xu)(xu)(xu)(xu)裝置。它(ta)(ta)在適當(dang)(dang)(dang)的(de)(de)(de)時(shi)機(ji)(ji)(ji)將(jiang)系(xi)(xi)統(tong)(tong)(tong)中(zhong)的(de)(de)(de)能(neng)(neng)(neng)(neng)(neng)量(liang)(liang)(liang)(liang)轉變(bian)為(wei)壓(ya)(ya)(ya)縮(suo)能(neng)(neng)(neng)(neng)(neng)或(huo)(huo)位(wei)(wei)能(neng)(neng)(neng)(neng)(neng)儲(chu)存起來(lai)(lai)(lai),當(dang)(dang)(dang)系(xi)(xi)統(tong)(tong)(tong)需(xu)(xu)要(yao)時(shi),又將(jiang)壓(ya)(ya)(ya)縮(suo)能(neng)(neng)(neng)(neng)(neng)或(huo)(huo)位(wei)(wei)能(neng)(neng)(neng)(neng)(neng)轉變(bian)為(wei)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)或(huo)(huo)氣(qi)(qi)壓(ya)(ya)(ya)等(deng)能(neng)(neng)(neng)(neng)(neng)而釋放(fang)出(chu)來(lai)(lai)(lai),重新(xin)補供(gong)給系(xi)(xi)統(tong)(tong)(tong)。當(dang)(dang)(dang)系(xi)(xi)統(tong)(tong)(tong)瞬間壓(ya)(ya)(ya)力(li)(li)(li)增(zeng)大時(shi),它(ta)(ta)可(ke)(ke)以(yi)吸(xi)(xi)(xi)收這部分的(de)(de)(de)能(neng)(neng)(neng)(neng)(neng)量(liang)(liang)(liang)(liang),以(yi)保證整個系(xi)(xi)統(tong)(tong)(tong)壓(ya)(ya)(ya)力(li)(li)(li)正常(chang)。液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)油(you)(you)是不(bu)可(ke)(ke)壓(ya)(ya)(ya)縮(suo)液(ye)(ye)(ye)(ye)(ye)(ye)體(ti)(ti),因此利用(yong)(yong)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)油(you)(you)是無法蓄(xu)(xu)(xu)(xu)積壓(ya)(ya)(ya)力(li)(li)(li)能(neng)(neng)(neng)(neng)(neng)的(de)(de)(de),必須依靠其(qi)他介質來(lai)(lai)(lai)轉換、蓄(xu)(xu)(xu)(xu)積壓(ya)(ya)(ya)力(li)(li)(li)能(neng)(neng)(neng)(neng)(neng)。例如,利用(yong)(yong)氣(qi)(qi)體(ti)(ti)(氮(dan)氣(qi)(qi))的(de)(de)(de)可(ke)(ke)壓(ya)(ya)(ya)縮(suo)性質研制的(de)(de)(de)皮囊(nang)(nang)(nang)(nang)式(shi)(shi)(shi)充氣(qi)(qi)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)就是一種蓄(xu)(xu)(xu)(xu)積液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)油(you)(you)的(de)(de)(de)裝置。皮囊(nang)(nang)(nang)(nang)式(shi)(shi)(shi)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)由(you)油(you)(you)液(ye)(ye)(ye)(ye)(ye)(ye)部分和帶有氣(qi)(qi)密封件的(de)(de)(de)氣(qi)(qi)體(ti)(ti)部分組(zu)成(cheng),位(wei)(wei)于皮囊(nang)(nang)(nang)(nang)周圍的(de)(de)(de)油(you)(you)液(ye)(ye)(ye)(ye)(ye)(ye)與(yu)油(you)(you)液(ye)(ye)(ye)(ye)(ye)(ye)回(hui)路(lu)(lu)接通。當(dang)(dang)(dang)壓(ya)(ya)(ya)力(li)(li)(li)升(sheng)高時(shi)油(you)(you)液(ye)(ye)(ye)(ye)(ye)(ye)進入蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi),氣(qi)(qi)體(ti)(ti)被(bei)壓(ya)(ya)(ya)縮(suo),直(zhi)(zhi)到系(xi)(xi)統(tong)(tong)(tong)管(guan)路(lu)(lu)壓(ya)(ya)(ya)力(li)(li)(li)不(bu)再(zai)上升(sheng);當(dang)(dang)(dang)管(guan)路(lu)(lu)壓(ya)(ya)(ya)力(li)(li)(li)下降(jiang)(jiang)時(shi)壓(ya)(ya)(ya)縮(suo)空(kong)氣(qi)(qi)膨脹,將(jiang)油(you)(you)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)入回(hui)路(lu)(lu),從(cong)而減緩(huan)管(guan)路(lu)(lu)壓(ya)(ya)(ya)力(li)(li)(li)的(de)(de)(de)下降(jiang)(jiang)。蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)有兩種用(yong)(yong)途。①當(dang)(dang)(dang)低(di)速運動(dong)時(shi)載荷(he)需(xu)(xu)要(yao)的(de)(de)(de)流(liu)量(liang)(liang)(liang)(liang)小(xiao)于液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵流(liu)量(liang)(liang)(liang)(liang),液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵多余的(de)(de)(de)流(liu)量(liang)(liang)(liang)(liang)儲(chu)入蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi),當(dang)(dang)(dang)載荷(he)要(yao)求流(liu)量(liang)(liang)(liang)(liang)大于液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵流(liu)量(liang)(liang)(liang)(liang)時(shi),液(ye)(ye)(ye)(ye)(ye)(ye)體(ti)(ti)從(cong)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)放(fang)出(chu)來(lai)(lai)(lai),以(yi)補液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵流(liu)量(liang)(liang)(liang)(liang)之不(bu)足。②當(dang)(dang)(dang)停機(ji)(ji)(ji)但(dan)(dan)仍需(xu)(xu)維(wei)持(chi)一定(ding)壓(ya)(ya)(ya)力(li)(li)(li)時(shi),可(ke)(ke)以(yi)停止液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵而由(you)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)補償系(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)泄漏,以(yi)保持(chi)系(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)。蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)也可(ke)(ke)用(yong)(yong)來(lai)(lai)(lai)吸(xi)(xi)(xi)收液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)泵的(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)脈動(dong)或(huo)(huo)吸(xi)(xi)(xi)收系(xi)(xi)統(tong)(tong)(tong)中(zhong)產生(sheng)的(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)沖擊(ji)壓(ya)(ya)(ya)力(li)(li)(li)。蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)中(zhong)的(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)(li)可(ke)(ke)以(yi)用(yong)(yong)壓(ya)(ya)(ya)縮(suo)氣(qi)(qi)體(ti)(ti)、重錘(chui)或(huo)(huo)彈簧(huang)來(lai)(lai)(lai)產生(sheng),相應(ying)地蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)分為(wei)氣(qi)(qi)體(ti)(ti)式(shi)(shi)(shi)、重錘(chui)式(shi)(shi)(shi)和彈簧(huang)式(shi)(shi)(shi)。氣(qi)(qi)體(ti)(ti)式(shi)(shi)(shi)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)器(qi)(qi)中(zhong)的(de)(de)(de)氣(qi)(qi)體(ti)(ti)與(yu)液(ye)(ye)(ye)(ye)(ye)(ye)體(ti)(ti)直(zhi)(zhi)接接觸者,稱(cheng)為(wei)接觸式(shi)(shi)(shi),其(qi)結構簡(jian)單,容量(liang)(liang)(liang)(liang)大,但(dan)(dan)液(ye)(ye)(ye)(ye)(ye)(ye)體(ti)(ti)中(zhong)容易混入氣(qi)(qi)體(ti)(ti),常(chang)用(yong)(yong)于水壓(ya)(ya)(ya)機(ji)(ji)(ji)上。氣(qi)(qi)體(ti)(ti)與(yu)液(ye)(ye)(ye)(ye)(ye)(ye)體(ti)(ti)不(bu)接觸的(de)(de)(de)稱(cheng)為(wei)隔(ge)離(li)式(shi)(shi)(shi),常(chang)用(yong)(yong)皮囊(nang)(nang)(nang)(nang)和隔(ge)膜(mo)來(lai)(lai)(lai)隔(ge)離(li),皮囊(nang)(nang)(nang)(nang)體(ti)(ti)積變(bian)化(hua)量(liang)(liang)(liang)(liang)大,隔(ge)膜(mo)體(ti)(ti)積變(bian)化(hua)量(liang)(liang)(liang)(liang)小(xiao),常(chang)用(yong)(yong)于吸(xi)(xi)(xi)收壓(ya)(ya)(ya)力(li)(li)(li)脈動(dong)。重錘(chui)式(shi)(shi)(shi)容量(liang)(liang)(liang)(liang)較大,常(chang)用(yong)(yong)于軋機(ji)(ji)(ji)等(deng)系(xi)(xi)統(tong)(tong)(tong)中(zhong),供(gong)蓄(xu)(xu)(xu)(xu)能(neng)(neng)(neng)(neng)(neng)用(yong)(yong)。
氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)是由缸(gang)(gang)(gang)(gang)筒(tong)、端(duan)蓋(gai)、活(huo)(huo)塞(sai)(sai)(sai)、活(huo)(huo)塞(sai)(sai)(sai)桿和密封件(jian)(jian)等組成,引(yin)導活(huo)(huo)塞(sai)(sai)(sai)在(zai)(zai)缸(gang)(gang)(gang)(gang)內進行直線(xian)往(wang)復運(yun)動(dong)的(de)(de)(de)(de)圓筒(tong)形金屬(shu)機(ji)(ji)件(jian)(jian)。空(kong)氣(qi)(qi)(qi)(qi)(qi)在(zai)(zai)發動(dong)機(ji)(ji)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)中通(tong)過膨(peng)脹(zhang)將(jiang)熱能(neng)轉化(hua)為(wei)(wei)(wei)機(ji)(ji)械能(neng);氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)在(zai)(zai)壓(ya)(ya)縮(suo)機(ji)(ji)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)中接受活(huo)(huo)塞(sai)(sai)(sai)壓(ya)(ya)縮(suo)而提高(gao)壓(ya)(ya)力(li)。渦(wo)輪機(ji)(ji)、旋轉活(huo)(huo)塞(sai)(sai)(sai)式(shi)(shi)發動(dong)機(ji)(ji)等的(de)(de)(de)(de)殼(ke)體(ti)(ti)通(tong)常也稱(cheng)“氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)”。氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)的(de)(de)(de)(de)應用(yong)領域:印刷(張力(li)控制)、半導體(ti)(ti)(點焊(han)機(ji)(ji)、芯片研磨)、自動(dong)化(hua)控制、機(ji)(ji)器人等等。內燃機(ji)(ji)缸(gang)(gang)(gang)(gang)體(ti)(ti)上安放活(huo)(huo)塞(sai)(sai)(sai)的(de)(de)(de)(de)空(kong)腔(qiang)。是活(huo)(huo)塞(sai)(sai)(sai)運(yun)動(dong)的(de)(de)(de)(de)軌道,燃氣(qi)(qi)(qi)(qi)(qi)在(zai)(zai)其中燃燒及(ji)膨(peng)脹(zhang),通(tong)過氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)壁還能(neng)散去一部分燃氣(qi)(qi)(qi)(qi)(qi)傳給的(de)(de)(de)(de)爆發余熱,使發動(dong)機(ji)(ji)保(bao)持正(zheng)常的(de)(de)(de)(de)工(gong)作(zuo)溫度(du)。氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)的(de)(de)(de)(de)型式(shi)(shi)有整(zheng)體(ti)(ti)式(shi)(shi)和單(dan)鑄(zhu)(zhu)式(shi)(shi)。單(dan)鑄(zhu)(zhu)式(shi)(shi)又分為(wei)(wei)(wei)干(gan)式(shi)(shi)和濕式(shi)(shi)兩種(zhong)。氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)和缸(gang)(gang)(gang)(gang)體(ti)(ti)鑄(zhu)(zhu)成一個整(zheng)體(ti)(ti)時稱(cheng)整(zheng)體(ti)(ti)式(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang);氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)和缸(gang)(gang)(gang)(gang)體(ti)(ti)分別(bie)鑄(zhu)(zhu)造時,單(dan)鑄(zhu)(zhu)的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)筒(tong)稱(cheng)為(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)套。氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)套與(yu)冷卻水直接接觸的(de)(de)(de)(de)稱(cheng)作(zuo)濕式(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)套;不(bu)與(yu)冷卻水直接接觸的(de)(de)(de)(de)稱(cheng)作(zuo)干(gan)式(shi)(shi)氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)套。為(wei)(wei)(wei)了保(bao)持氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)與(yu)活(huo)(huo)塞(sai)(sai)(sai)接觸的(de)(de)(de)(de)嚴密性(xing),減少活(huo)(huo)塞(sai)(sai)(sai)在(zai)(zai)其中運(yun)動(dong)的(de)(de)(de)(de)摩擦損失,氣(qi)(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)(gang)內壁應有較高(gao)的(de)(de)(de)(de)加工(gong)精(jing)度(du)和精(jing)確的(de)(de)(de)(de)形狀(zhuang)尺寸(cun)。
互感器又稱為儀用變壓器,是電流互感器和電壓互感器的統稱。能將高電壓變成低電壓、大電流變成小電流,用于量測或保護系統。其功能主要是將高電壓或大電流按比例變換成標準低電壓(100V)或標準小電流(5A或1A,均指額定值),以便實現測量儀表、保護設備及自動控制設備的標準化、小型化。同時互感器還可用來隔開高電壓系統,以保證人身和設備的安全。
在供電用電的線路中,電流相差從幾安到幾萬安,電壓相差從幾伏到幾百萬伏。線路中電流電壓都比較高,如直接測量是非常危險的。為便于二次儀表測量需要轉換為比較統一的電流電壓,使用互感器起到變流變壓和電氣隔離的作用。
顯示儀表大部分是指針式的電流電壓表,所以電流互感器的二次電流大多數是安培級的(如5等)。隨著時代發展,電量測量大多已經達到數字化,而計算機的采樣的信號一般為毫安級(0-5V、4-20mA等)。微型電流互感器二次電流為毫安級,主要起大互感器與采樣之間的橋梁作用。微型電流互感器稱之為“儀用電流互感器”。(“儀用電流互感器”有一層含義是在實驗室使用的多電流比精密電流互感器,一般用于擴大儀表量程。)
電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)(qi)原理線路圖微(wei)型電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)(qi)與變(bian)壓器(qi)(qi)(qi)類似也是(shi)根據電(dian)(dian)磁感(gan)應原理工作,變(bian)壓器(qi)(qi)(qi)變(bian)換的(de)是(shi)電(dian)(dian)壓而微(wei)型電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)(qi)變(bian)換的(de)是(shi)電(dian)(dian)流(liu)罷(ba)了。繞(rao)(rao)組N1接被(bei)測電(dian)(dian)流(liu),稱為一次(ci)繞(rao)(rao)組(或原邊(bian)繞(rao)(rao)組、初級繞(rao)(rao)組);繞(rao)(rao)組N2接測量儀表,稱為二次(ci)繞(rao)(rao)組(或副(fu)邊(bian)繞(rao)(rao)組、次(ci)級繞(rao)(rao)組)。
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